The classification you’re referring to is the classic somatotype system, which sorts body types into three main categories:
A – Ectomorph
- Build: Slim, narrow shoulders and hips, little body fat
- Metabolism: Fast, finds it hard to gain weight or muscle
- Appearance: Long limbs, small bone structure
- Typical traits: Lean, delicate frame, minimal fat storage
B – Mesomorph
- Build: Naturally muscular and athletic, broad shoulders, narrow waist
- Metabolism: Gains muscle easily, moderate fat storage
- Appearance: Rectangular or “V-shaped” torso
- Typical traits: Strong, well-proportioned, responds well to exercise
C – Endomorph
- Build: Rounder, softer body, wider waist and hips
- Metabolism: Slower, gains fat more easily
- Appearance: Thick bones, higher fat storage
- Typical traits: Stocky, can gain muscle but may also gain fat easily
💡 Important: Most people are a mix of types rather than purely one. For example, someone can be ecto-mesomorph (lean but muscular) or endo-mesomorph (stocky but athletic).
If you want, I can make a quick quiz to tell your likely body type (A, B, or C) based on your measurements and habits. That usually gives a clearer picture than just guessing.
Do you want me to do that?